 This study compared the effectiveness of various extraction techniques when used to collect environmental DNA, EDNA, from multiple trophic levels in a single sample. The researchers found that the Dinesi and Mobio PowerWater DNA isolation kits produced similar results, while phenol slash chloroform extractions yielded distinctly different results. They recommended using either Dinesi or Mobio with PES, PCT, PVDF, or NC filters for cross trophic level comparisons. This article was authored by Annie Juruis, Jesse Porte, Colin J. Kloseck and others.